diff --git a/htroot/SettingsAck_p.java b/htroot/SettingsAck_p.java
index 00bade8e5..4184a8a21 100644
--- a/htroot/SettingsAck_p.java
+++ b/htroot/SettingsAck_p.java
@@ -62,9 +62,8 @@ public class SettingsAck_p {
         final Switchboard sb = (Switchboard) env;
         
         // get referer for backlink
-        final String referer = header.get(RequestHeader.REFERER);
+        final String referer = header.referer();
         prop.put("referer", (referer == null) ? "Settings_p.html" : referer); 
-        
         //if (post == null) System.out.println("POST: NULL"); else System.out.println("POST: " + post.toString());
         
         if (post == null) {
diff --git a/htroot/Steering.java b/htroot/Steering.java
index c88889333..a2f011696 100644
--- a/htroot/Steering.java
+++ b/htroot/Steering.java
@@ -29,6 +29,9 @@
 
 import java.io.File;
 
+import net.yacy.kelondro.logging.Log;
+
+import de.anomic.http.server.HeaderFramework;
 import de.anomic.http.server.RequestHeader;
 import de.anomic.search.Switchboard;
 import de.anomic.server.serverObjects;
@@ -45,13 +48,17 @@ public class Steering {
         prop.put("info", "0"); //no information submitted
         if (prop == null) { return null; }
 
+        final String requestIP = post.get(HeaderFramework.CONNECTION_PROP_CLIENTIP, "127.0.0.1");
+        
         // handle access rights
         if (!sb.verifyAuthentication(header, false)) {
+            Log.logInfo("STEERING", "log-in attempt for steering from " + requestIP);
             prop.put("AUTHENTICATE", "admin log-in"); // force log-in
             return prop;
         }
 
         if (post.containsKey("shutdown")) {
+            Log.logInfo("STEERING", "shutdown request from " + requestIP);
             sb.terminate(100);
             prop.put("info", "3");
             
@@ -59,6 +66,7 @@ public class Steering {
         }
 
         if (post.containsKey("restart")) {
+            Log.logInfo("STEERING", "restart request from " + requestIP);
             yacyRelease.restart();
             prop.put("info", "4");
             
@@ -66,6 +74,7 @@ public class Steering {
         }
         
         if (post.containsKey("update")) {
+            Log.logInfo("STEERING", "update request from " + requestIP);
             final boolean devenvironment = new File(sb.getRootPath(), ".svn").exists();
             final String releaseFileName = post.get("releaseinstall", "");
             final File releaseFile = new File(sb.getRootPath(), "DATA/RELEASE/".replace("/", File.separator) + releaseFileName);
diff --git a/htroot/cytag.java b/htroot/cytag.java
index c5ec2af4b..7b73a291c 100644
--- a/htroot/cytag.java
+++ b/htroot/cytag.java
@@ -35,6 +35,7 @@ import net.yacy.document.parser.html.CharacterCoding;
 import net.yacy.kelondro.util.DateFormatter;
 import net.yacy.kelondro.util.FileUtils;
 
+import de.anomic.http.server.HeaderFramework;
 import de.anomic.http.server.RequestHeader;
 import de.anomic.search.Switchboard;
 import de.anomic.server.serverObjects;
@@ -50,11 +51,11 @@ public class cytag {
         StringBuilder connect = new StringBuilder();
         connect.append('{');
         addJSON(connect, "time", DateFormatter.formatShortMilliSecond(new Date()));
-        addJSON(connect, "trail", header.get("Referer", ""));
+        addJSON(connect, "trail", header.referer());
         addJSON(connect, "nick",  (post == null) ? "" : post.get("nick", ""));
         addJSON(connect, "tag",   (post == null) ? "" : post.get("tag", ""));
         addJSON(connect, "icon",  (post == null) ? "" : post.get("icon", ""));
-        addJSON(connect, "ip",    header.get("CLIENTIP", ""));
+        addJSON(connect, "ip",    header.get(HeaderFramework.CONNECTION_PROP_CLIENTIP, ""));
         addJSON(connect, "agent", header.get("User-Agent", ""));
         connect.append('}');
         
diff --git a/source/de/anomic/http/server/RequestHeader.java b/source/de/anomic/http/server/RequestHeader.java
index 1676f190f..37e943588 100755
--- a/source/de/anomic/http/server/RequestHeader.java
+++ b/source/de/anomic/http/server/RequestHeader.java
@@ -25,12 +25,12 @@ package de.anomic.http.server;
 
 import java.io.IOException;
 import java.net.MalformedURLException;
-import java.net.URL;
 import java.util.Date;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Properties;
 
+import net.yacy.kelondro.data.meta.DigestURI;
 import net.yacy.kelondro.util.DateFormatter;
 
 import de.anomic.server.serverCore;
@@ -79,10 +79,15 @@ public class RequestHeader extends HeaderFramework {
     }
     
     public String refererHost() {
-        String  refererHost = "";
         final String referer = referer();
-        if (referer.length() > 0) try { refererHost = (new URL(referer)).getHost(); } catch (final MalformedURLException e) {}
-        return refererHost;
+        if (referer.length() == 0) return referer;
+        DigestURI url;
+        try {
+            url = new DigestURI(referer, null);
+            return url.getHost();
+        } catch (MalformedURLException e1) {
+            return referer;
+        }
     }
     
     public Date ifModifiedSince() {